Spitsbergen is the largest and the only permanently populated island of the Svalbard archipelago in northern Norway in the Arctic Ocean. Constituting the westernmost bulk of the archipelago, it borders the Arctic Ocean, the Norwegian Sea and the Greenland Sea. Spitsbergen covers an area of 37,673 km2, making it the largest island in Norway and the 36th largest in the world. The administrative centre is Longyearbyen.